Organ.



E. LOUIS.

ORGAN.

APPLICATION FILED NOV. 6. 1916.

Patented July 16, 1918.

2 SHEETS-SHEET I. 051%.

m 'INV NDTOR. 2 A ATTORNEY ELEK IIOUES, 036 NEW YORK, N. Y.

oiaean.

Specification of Letters Patent.

Patented July fil h, 1218.

Application filed November 6, 1916. Serial No. 129,734.

To all whom it may concern Be it known that I, ELnK Louis, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented new and use ful Improvements in Organs, of which the following is a specification.

The present invention relates to electropneumatically operated organs, and has for its main object to provide a stop mechanism, that is simple in construction and efficient in operation.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement, and construction of parts hereinafter described, pointed out in the appended claims and illustrated in the accompanying drawings, it'being understood that many changes may be made in the size and proportion of the several parts and details of construction within the scope of the appended claims without departing from the spirit or sacrificing any of the advantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which Figure 1 is a side elevation of a port1on of an organ, including av stop mechanism constructed in accordance with the present invention; Fig. 2 is a similar elevation showing the elements in other positions; Fig. 3 is a section taken on line 33 of Fig. 1, on a larger scale; Fig. 4 is an end view of the detail shown in Fig. 3; and Fig. 5 is a perspective view of a rocker forming part of the stop mechanism.

In the drawings, the numeral 1 indicates a frame or support, on which is slidably disposed a stophandle 2, the inner end of which is pivoted at 3 to one end of a lever l. 7

This lever is fulcrumed at 5, intermediate its ends, to the frame, and is connected-by a rod 6 with a horizontally disposed sliding stop-bar 7. The front end of this bar is pivoted at 8 to a link 9, the latter being fulcrumed at 10 to the organ frame. To the rear end of the bar 7 is pivoted at 11 a contact lever 12, fulcrumed at 13 to the frame and carrying a contact piece 14, adapted to bridge the gap between two stationary contact points 15 of an electric circuit 16, into which is inserted a mechanism for actuating a de or val e h m h m i n I furthermore shown in the drawings as it is well known and does not form part of the present invention.

The stop-bar is provided with a longitudinal slot 17, Within which is disposed a rocker larly disposed portions 20 and 21, arranged in such a manner that, when either one of these portions is wholly disposed within the slot, the other one projects below the underface of the stop-bar 7. A lug 22 projects above the upper edge of the rocker and 00- operates with a blade spring 23, or its equivalent, that is attached to the stop-bar, said spring serving to hold the rocker firmly in either one of its positions. The rocker is rovided with an aperture 24:, through whic extends a pin 26 carried by the stop-bar, said pin serving to limit the movement of the rocker in either direction.

For setting the rocker, for a purpose hereinafter to be described, there is provided a vertically extending setting-bar 27, said bar being disposed in operative relation to the said rocker below the same. The settingbar is pivoted at 28 to the movable leaf 29 of a bellows 30. This bellows is disposed horizontally, as clearly appears from Fig. 1 of the drawings, and is actuated in a manner hereinafter to be described. Near its upper end the setting-bar is provided with a longitudinal slot 31, through which extends a pin 32 that is carried by the frame 1, said pin and slot serving to guide the movement of the setting-bar.

For the purpose of shifting the sliding stop-bar 7 from its 0d position to its on position and vice versa, there cooperates with the rocker 18 a mechanism, that is actuated by a vertically disposed bellows 33. This bellows is considerably larger than the bellows 30 above referred to, and has fixedly attached to its movable leaf 34 an upwardly projecting lug 35, in the path of which is disposed the portion 20 of the rocker 18, when the stop-bar 7 is in its 03 position or, in other words, in a position in which the contact piece 14 does not bridge the gap between the stationary contact points 15. A lever 36 is pivoted at 37 to the frame 1, its upper end being adapted to coact with the portion 21 of the rocker, when the latter projects below the underface of the stop-bar. This lever iseactuated also by the bellows 33,

the movable lea-f 34 of which carries for this purpose a projection 38; that tilts the lever 36 around its pivot when the bellows is being inflated, in which case the upper end of the said lever moves toward the stop handle 2. A spring 39 tends to move the lever 36 in a direction opposite to that into which it is moved by the bellows 33.

The bellows 30 and 33 receive a supply of compressed air, for inflating the same, from a wind-chest 40. This chest is connected by pipes 41 and 42 with the bellows 33 and 30, respectively, the communication between the said pipes and the interior of the chest being controlled by a slide 43, having a single opening 44 that is adapted to register, at

will, with either ope of the pipes 41 and 42. 1

Normally the opening 44 registers with the pipe 41, a spring 45, attached to the said slide and to the wind-chest, maintaining the said slide in such position. For shifting the slide, in order to bring its opening 44 into alinement with the pipe 42, any suitable motor may be provided, for instance a bellows 46, to the movable leaf 47 of which is pivoted at 48 the said slide. This bellows is connected by a pipe 49 with the windchest 40, the communication being controlled in a manner hereinafter to be described.

From the pipes 41 and 42 lead passages 50 and 51, respectively, to an orifice 52 in one'of the walls of the wind-chest, which is controlled by two valves, denoted by the numerals 53 and 54, one being disposed outside and the other one inside of the windchest. These valves are attached to a stem 55, the latter being secured to a diaphragm 56, covering a recess 57 in the wall of the wind-chest. This recess communicates through a passage 58 with the interior of the wind-chest. The passage 58 is controlled by valve 59, the stem 60 of which is attached to a diaphragm 61, covering a recess 62 in the wind-chest, said recess being adapted to communicate througha passage 63 with the atmosphereand with the interior of the windchest. This communication is controlled by the armature disk 64 of an electro-magnet 65. This electro-lnagnet is inserted into an electric circuit 66, controlled by a switch 67. The communication between the wind-chest and the pipe 49 of the bellows 46 is con the interior of the wind-chest through a pipe 1 7 O, the diaphragms and valves in said chest being normally in the positions shown in Fig. 3 of the drawings, due to the fact that the same pressure prevails on both sides of the said diaphragms. If it is intended to infiate the bellows 33, the switch 67 is set to its closing position, whereby the electromagnet is energized, with the result that the armature disk 64 is attracted thereby,

air is thus allowed to flow to the pipe 41 'to inflate the bellows 33. If it is intended to inflate the bellows 30, first the electro-magnet 68 is energized, whereby the bellows 46 is inflated and the slide 43 shifted so that its opening 44 registers with the. pipe 42,

leading to the bellows 30. By energizing then the magnet 65, compressed air will flow through the pipe 42 to thebellows 30. From the foregoing it appears that the magnet 65 coiiperates with both the bellows 30 and 33,

the magnet 68 serving only to set the slide 43.

Assuming that the stop-bar 7 is in its ofi position (Fig. 1), and it is intended to shift 7 the same to its on position, in which the contact piece 14 bridges the gap between the stationary contact points 15; and assuming also that the portion 21 ofthe rocker 18 projects below the underface of the stop bar 7, as shown in Fig. 2, and it is intended to shift the stop-bar to its on position, obviously, first the small bellows 30 must be inflated in order to raise the setting-bar 27, whereby the rocker 18 is swung around its pivot point 19, thereby causing the portion 20 thereof to project below the underface of the said stop-bar. These positions of the elements are shown in Fig. 1 of the drawings. In order to shift now the stop-bar, the large bellows 33 is inflated, whereby the lug 35 on the movable leaf 34 thereof comes into contact with the portion 20 of the rocker and shifts the stop-bar in the direction of the arrow shown in Fig. l of the drawings, imparting a corresponding motion to the contact lever 12, thus bridging the gap between the stationary contact points 15.

If it is desired to shift the stop-bar from the position shown in Fig. 2 of the drawings into the position shown in Fig. 1 of the drawings, that is to say from its on position to its of position, first the rocker 18 must be swung around its pivot 19 so that its portion 21 projects below the underface of the stop-bar. This is accomplished by inflating the small bellows 30. When now the large bellows 33 is inflated, the projection 38 swings the lever 36 into contact with the portion 21 of the rocker and, as the said lever completes its stroke, the stop-bar 7 is moved in the direction of the arrow shown in Fig. 2 of the drawings.

Itis obvious that, if a single stop-bar only were used in an organ action, the operations now described could-beperformed by simply actuating the stop-handle 2. In these actions, however, a great number of stop-bars is provided, upon each of which is mounted a rocker 18, all of which are actuated by the small bellows and the large bellows 33, so that, by operating the two switches 67 and 69, a great number of stop-bars may be shifted simultaneously, at will.

Attention is called to the fact that, inasmuch as the bellows 30 and 33 are disposed in different planes, in the case illustrated in the drawings in two planes at right angles to each other, considerable space is saved compared with the structures, in which the actuating bellows are disposed in parallel planes. It is to be noted also that in the device herein described, a single bellows is used for shifting the stop-bar in both directions, in contradistinctionto the constructions heretofore employed in which for each stop-bar, of a rockerplvotally'mounted on said bar having two distinct portions extending at an angle to each other, either one of said portions being adapted to project below the underface of said bar when the other one is above said underfac'e, an actuator 2. In an organstop action, the combina-,

tion with a horizontally disposed shiftable stop-bar, of a rocker pivotallyniounted on said bar having two distinct portions extending at an angle to each other, either one of said portions being adapted to project below the underface of said bar when the other one is above said underface, an actuator for setting said rocker, means adapted to cooperate with either portion of said rocker for shifting said stop-bar endwise, said last named means comprising a bellows, an up wardly projecting lug on the movable leaf of said bellows adapted to cooperate with one of the portions of said rocker, an oscillatable lever adapted to cooperate-with the opposite portion of said rocker, and means upon the movable leaf of said bellows for actuating said lever.

In testimony whereof, I have signed my name'to this specification.

ELEK LOUIS. 

